package com.atguigu.exer;

public class ArrayDemo {
    public static void main(String[] args) {
        int[] arr = new int[]{8, 2, 1, 0, 3};
        int[] index = {2, 0, 3, 2, 4, 0, 1, 3, 2, 3, 3};
        String tel = "";
        for (int i = 0; i < index.length; i++) {
            tel += arr[index[i]];
        }
        System.out.println("联系方式：" + tel);//18...
    }

}
